Weir and tide gage.



fPATBNTEDN0v-j1'2,1907. L..o.B1sBNHUfr-; j wm. AND TIDB GAGE.

3 SHEETS-SHEET 2.

'nl "NIMH nmulllIIIIl l No. 871,093. PATENTBD NOV. 12, 19077 L. C. EISENHUT. WEIR AND TIDE GAGE. hummm! ruim ooms, 1904.

3 SHEETS-SHEET 3.

19a.: lter@ UNrTED STATES --PATENT OFFICE.

LAURENSE C. ISENHUT, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO GILBERTv ELLIOTT, OF BROOKLYN, NEW YORK.

WEER. AND TIDE GAGE.

Specication of Letters Patent.

Patented Nov. 12. 1907.

`Application led October 13l 1904. Serial Ho. 228.277.

of the United States, residing in borough of Kings,

.. Brooklyn,New York city, in the county of Kings and vState of New York, have invented certain new and useful Improvements in Weir and Tide Gages, of which the following is a specification. y

This invention `relates to and has for its object to provide an improved water gage and one which is adapted to the measurement of water passing over a Weir sill or through a. conduit or to record the variations in heigh of a standing body of water. y

In the drawings accompanying and forming a part of l this specification, Figure l represents a side view of a weirsill and receiver in connection with a conduit havy.ing my improved recording applied thereto. In

this form of .the device the water passing through the conduit is assumed to be under suction, land a. certain degreeof vacuum maintained therein. Fig. 2 is a drum. Fig. 7 is a side elevation thereof, also lken away, and Fig. 8 is a detail illustrating the shell shown in Fig. 6 in a different position, namely, with -the parts separated to permit the ready insertion of the chart paper.

When the invention is applied to measuring water passing through conduits, such conduits will have a portion which may be regarded as a Weir sill, and the present improvement is so constituted that it will register the most minute and rapidly changing heights or depths 0i a stream flowing over such Weir sill portion, which registration may be upon a removable chart,4

which may be preserved for-record. Such chart may Y the chart'lines 21 are shown as arranged in different series, merely showing the flexibility of the device.

The drum for carryingl the chart is designated in a general way by 25 and comprises a base portion 26 having a groove 27 in which are mounted a number of antifriction rollers 28 adapted to run upon a track portion 29 of "a bracket 30, which bracket 30 constitutes in the present instance the bed-plate of the .recording mechanism.`

l chart paper 20l may be passed.

The vbase portion 26 constitutes a housing having suitable clock mechanism, designated in a general way by 3l, which Will be connected to the shaft 32 of the drum n and which shaft is shown as comprising telescopic portions 33, 330, .secured in place by means of a suitable screw 34 which will hold the top portion of the drum, illustrated in the present instance as a wheel 35, in place upon a drum shell 36, which shell may be of some material adapted to maintain its conformation, and which may in practice be sheet steel. The drum shaftmay be supported by a member 320 hinged at 321, 322 to a pin 323 carried by the frame 62. The shell will be fastened to the top and bottom members of the drum and constitute a surface over which the chart paper may be smoothly drawn, presenting a plane cylindrical surface for a recording tool, designated in a general way by 50, to pass over and make its record. The drum shell may be split ,having its abutting ends 37, 38 in a line parallel with the axis of the drum and constituting an opening 39, through which the ends 40, 41 of the The body member 26 may also have a slit or opening 42 registering with such opening 39, and the flange 43 of the top member may also have a korf or opening 44 similarly registering with such opening 39. A, Y

After the ends of the paper chart are passed through the opening 39, the'resiliency oi the drum will ordinarily be sufficient to hold the drum edges and the chart paper ends in place. One of the drum edges, as 37, may, however, be provided with means for springing it outwardly to permit the more ready insertion of the said ends of the paper chart, and when the parts are returned to their normal position, to hold the edges together and increase their bite. Such edge may be sprung out by means of an eccentric 45 having bearings 46, 46 in the top and-bottom members of the drum and b'e provided with a knurled head 16 or some other suitable means for actuating it. The shell of the drum may carry a bearing portion 47 surrounding the eccentric, so that the eccentric may also draw the end which is adapted to be sprung back into its normal position and there lock the same. The

lparts in such position are shown in Fig. 6, Fig. 8 showing the open or sprung position.

In measuring orrecording fluctuations of considerable range, for economy oi space it is desirable to reduce the space occupied by the record upon the chart, and assuming a float is employed for rising and falling with the rise and fall of the surface of the water, some reducing mechanism may be inserted between the recording tool 50 and such float, and which, in the present instance, in the form illustrated in Fig. 2,

comprises a train of gears,y designated ina general way by 51, actuated by-an arm 52 fast upon the stem` 53- of n float 54, shown in dotted lines, which oat is carried'by the water within' the float tube 55,- which tubeV is illustrated as having a flange 5G adapted for securenxent -lo a stand-pipe or other connection with the water container where the measurement is-to be made.

The connection between the arm '2 and the float rod 53 may be by means oi an adjustable split collar 57, and similar collars 58, 59 may be Carried by the stein at each side of such arm collar 5.7, and in some instances the collars 58, 59 may be fast upon the float rod and the collar 57 may be loose thereon, so that any tendency ot' the float. to rotate within the `tube 55 will not produce torsion upon the rod 53, which torsion would be accompanied with increased riction'in the bearings. v

' The recording tool. is shown as carried by'the rack t bar 60 shiitable in ways 61 oi the frame work 62 carried by the bod-'plate 30, which ways, in the present instance, are illustrated :1s-vertically disposed. The train of gearing between the rack bar 60v and the rack bar 63 carried by the arm 52 and reciprocable Ain ways 6-'1 or' the frame, comprises a 'gear wheel 65 fast upon a shaft 66 having bearings in the frame, a pinion 67 being tast upon such shaft 6G and meshing with awhecl 68 carried by a' slide 69, shiftablein ways 70 .of the frame, and which latter pinion is in mesh with the rack bar 60. For the purpose of changing the gearing the pinion 67 may be removably held upon the shaft 66 by means of a set screw 71, and when it is desired to change the gearing, as for instance, by substituting a gear having` an equalpitch line with the gear wheelS, the pinion- 67 may be removed and a pinion, illustrated 'by '72, see Fig. 4, maybe substituted, and in which instance the slide 69 will be moved upon the ways 70 unt-il the pinion assumes a position permitting it to mesh with the pinion .72. ,Different sizesb pmions may be employed to proinfluence which may be a certain amount of vacuum,v

and which water may pass into the receiver 81 and have its exhaust through a pipe SZ running to'some pumping device adapted to produ-ce the desired conditions within the conduit. This conduit is shown as having avweir sill 83. The float cylinder 55 is shown as mounted upon piping 85 having an end 86 communicating with the conduit adjacent to and slightly below the level ofthe Weir sill. A line of pip'e 15 also'runs to the air pump or enhau'st, and a line of pipe 87 may also run from said line pipe 15 and the reservoir f84, by means of a pipe'SB having a valve 89, to thedome 90 of the float pipe 55, and which dome, in the present instance, is shown as having within it one or more flexible stuffing box members 91 adapted when pressed inwardly by the4 atmospheric air entering .through openings 92 to embrace the rod 53 and exclude the'atznospheric air from entering thetop of the ioat pipe 55, which inust be the same degree of vacuum asis maintained in the conduit 80.- The vacumn oi course will befprofliucedA `through the pipe `88 and the stuffing box 91, such'acting not only as a stu'iing box lbut as a valve, a trap and guide. i I

The iioat tube may be provided with a suitable sight gage 93, which may be of any suitable construction, and willbe found useful in the initial setting of the device to enable the operator to ascertain the relative position of the float to the maximum and minimum lines of iiuctuation so that he can adjust the recording tool accordingly, and to assist in setting the device scales as 93, 93 may be employed, see Fig.'1.

The advantage of fastening the paper chart upon the drinn in the manner hereinabove described. permits the chart to have uniform margins, which could not'be the case were the drum chart pasted upon-the drum and then cut off, assuming the instrument to run from e ge to edge of the drum, or in some instances to overlap the edges. By means of this device a clean or'substantially iiush edge 48 is had at the meet-ing of the two ends 10, 41. so that the entire circumference of the drum shell is available for the'vfpurpose of recording and sufficient paper will be left for marginal remarks.

In recording the lfluctuations of a. body of Watenas for instance in ascertainingthe'leakage or evaporation from a reservoir, a stand pipe l100, see Fig. 5, may be mounted by means of a-suitable flange 101 upon some foundation, and a four-way coupling 102 may be a convenient means of admitting the water into the stand pipe and may be put suiicient distance below the surface, designated in a generalway by 103, of the water so that wind and wave motion will not be transmitted to the float 104 which is vto carry thevtluctuations to the recording apparatus. The stand pipe may be provided with an arm 105 which for convenience may be made -of piping and have a head 106 provided with eyes 107 for guy ropes 10S to steady the device. In this form of gaging the gage will in many instances be employed for a short period .of timeonly, or instance, only ten to thirty minutes. The stand-pipe and its connections will. remain in the body of Water in some instances permanently, but the recording apparatus will be placed in positionA andnsed as occasion may demand. To this end the stand-pipe may have Afastened, into itin some convenient manner, as by screwing, a seat mem: ber 110 having an internal face 111, in the present in stance conoidal, to receive a. plug 112, alsohaving a conoidal `face, to -register with that of the face 111,-

lwhich plug 112 'is shown as hollow and connecting with the loat .tube 113. This affords a. convenient4 means for attaching the float tube and the recording gage, and

as the connection will have to be inadeunder water.

itis a simple and efficient means oi connection.

In the present instance the float-tube-comprises a glass cylinder 114'held upon heads 115, 1 16 by rods 117 having nuts 118 to bind the heads together end lmld them fast upon the glass tube 114. The head 116 may vsmall fall ot' the surface oi the water, then it may be expedient to gear up the connection, audit the iiuctuation is great it may be desirable to gear it down. Although the chart drum is-illustrated as near to the It for measuring leakages in` path of movement of the float rod yet it will be apparent that the distance may be ,increased as occasion may demand.

Having thus described my invention, l claim:

1. A chart-drum having resilient walls, said walls having closely abutting Kedges at one side of the drum, an eccentric for springing one ot' the edges out of its normal or abntte'd position, and a sheet metal bearing upon the inside 0i the said'edge and surrounding said eccentric` whereby the same may return\the said edge to its normal position.

2. In a wcir gage the combination with a iioa'r, of a movable chart drum, a frame work provided with horizontal bearings and vertical grooves, a shaft mounted in said bearings, a rack bur carried by said float and shiftable in one of said grooves, a gear wheel :iast on said shaft and in mesh with said rack bar, a tool to record upon said chart, a rack bar 'ing said tool and shiftable in one of said grooves, a'plate ovzllilii'n"anotheilrof said grooes, a gear wheel carried. hy said plate and in mesh with th tool carrying rack har, and an interchangeable pinion carried ily-*said* shrri'trand-iHmshAailhjgcar wheel on said plate. "rr-'1 ln a water gage the combination with a iloat actuated recording device, of a float tube carried thereby and having a conoidal curi, a iloat in s nid tube and connected to said recording device, and a stand pipe having a conoidal seat adapted to receive the said end of the iloat tube.

4. in a water gage the combination with a stand pipe' having a conoidal scat at its end, oi a recording device, a iioat and a float tube carrying the same, and a colloidal plug upon said iioat tube adapted to iit said seat.

ln a water gage', the combination of a connection for a standpipe and a recording instrument embodying a tube eliective when in communication with said stand pipe and comprising a conical scat on one of them, and a conical plug on the other of them.

d. In a stream flow gage the combination with a stand pipe open to the stream, of a iioat therein, a rotary drum adjacent to the stand pipe and adapted to carry a chart sheet, means to rotate the drum, a scribing instrument, a vertically reciprocatable slide for carrying the same' and provided with a rack bar, a rack bar reciprocatable ffy the float, anda train of gear between the said rack '-ars, a

reciprocatory plate carrying one of said gears and one o! them being interchangeable whereby the movable gear may be placed in mesh with interchangeable gears of variou radii.

7. In a Water gage the combination with a water actuated iioat, of means to-carry a chart sheet, a scribing instrument, a reciprocating slide for carrying the same and provided with a rack bar, a rack bar reciprocatable by the said iioat, a train of gear between said rack bars, and a. plate reciprocatable on a line parallel to the line of reciprocation of said slide and carrying one of said gearl, and another of them being interchangeable, and means for removably securing said interchangeable gear 'to said plate.

8. in a water gage the combination with a dont, of

means for carrying a chart, a scrihing instrument, a recip rocatalile rack bar connected to said instrument, a rack bnr reciprocamlhle hy the said float, a train of gear between said rack bars, one gear ot said train being interchangeable, and a slide carrying one of them.

fi. In a water gage the combination with means to carry a chart sheet, oi a recording tool, a rack bar for actuating said tool, a iloat, a train of gear actuated by said float, and a rcciprocatory plate carrying one geur of. said train.

lo. ln a water gage the combination with means to carry a chart sheet, of a recording tool, a rack bar lor ac-V tuating said tool, a iloat, a train of gear actuated by said float, a reciproeatory plate carrying one gear of said train, and another'gear ot said train being interchangeable.

11. The combination with a recording tool and a train l of gear for actuating the same, of a rack bar reciprocatable in ways and in mesh with a gear of said train, a iioat, a. iioat tube, a float rod connected to said ioat and extending out of said tube, a guide for the tioat at the top of the LAURENSE C. EISENHUT.

Witnesses v Crus. LYON RUSSELL, Fano. J. Donn. 

